E+E EE23 Specifications

EE23

The EE23 is optimized for reliable and cost effective use in industrial
applications. In addition to highly accurate measurement of relative
humidity (RH) and temperature (T), the sensor also calculates the dew
point (Td) and the frost point temperature (Tf).

Measurement Performance

The EE23 employs high-end E+E humidity sensing elements manufactu-

red in state-of-the-art thin lm technology, which are the prerequisite for

outstanding accuracy.

Long Term Stability

The E+E proprietary coating protects the sensing elements against corro­sive and electrically conductive pollution, which leads to outstanding long­term stability even in harsh environment. With the appropriate choice of

lter cap, the EE23 tackles even challenging industrial applications.

Humidity / Temperature Sensor for

Industrial Applications

Model T1

Outputs and Power Supply

The measured data is available on two voltage or current outputs as
well as on the display. Additional features like alarm (relay) output and
integrated supply module 100…240V AC facilitate the use of the EE23 in
a wide range of applications.

Easy Installation and Service

The modular, three parts design of the IP65 / NEMA 4 enclosure, availa­ble in polycarbonate or metal, facilitates easy installation, service and
replacement.

The enclosure consists of the back cover with the terminals for wiring,

the pluggable active part with the electronics and the probe, and the front
cover. Once installed, the active part of EE23 can be plugged on and off
without rewiring. The plastic enclosure is appropriate also for mounting
onto DIN rails.

Remote Probe and Accessories

The remote probe with cable length up to 20m (65.6 ft) together with a

wide choice of accessories such as mounting anges or brackets, drip

water protection or radiation shield allow for easy integration of the EE23

into any measurement task.

User Congurable

The user can easily perform a two-point humidity and temperature

adjustment. The analogue and alarm outputs can be freely congured.

Model T2

Model T4/T5

Model T6

Features

• Temperature range -40...180 °C (-40...356 °F)

• Outstanding long term stability

• Calculation of dew point and
frost point temperature

• Easy mounting and maintenance

• Alarm output

• Inspection certicate according
to DIN EN 10204 – 3.1

Protective Sensor Coating

The E+E proprietary sensor coating is a protective layer applied to the active surface and leads of the sensing elements.
The coating extends substantially the lifetime and the measurement performance of the E+E sensor in corrosive
environment. Additionally, it improves the sensor’s long term stability in dusty, dirty or oily applications by preventing stray
impedances caused by deposits on the active sensor surface.

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v5.1 / Modification rights reserved

EE23

EE23

Technical Data

Measurands

Relative Humidity

Working range 0...100% RH

Accuracy1) (including hysteresis, non-linearity and repeatability, traceable to intern. standards, administrated by NIST, PTB, BEV...)
EE23-T1/T2/T4/T5 EE23-T6

-15...40°C (5...104°F) ≤90% RH ± (1.3 + 0.3%*mv) % RH ± (1.8 + 0,3%*mv) % RH

-15...40°C (5...104°F) >90% RH ± 2.3% RH ± 2.8% RH

-25...70°C (-13...158°F) ± (1.4 + 1%*mv) % RH ± (1.9 + 1%*mv) % RH

-40...180°C (-40...356°F) ± (1.5 + 1.5%*mv) % RH ± (2 + 1.5%*mv) % RH
Temperature dependence electronics typ. ± 0.015% RH/°C

Response time t

Temperature

Probe working range EE23-T1 -40...60°C (-40...140°F)
EE23-T2/T6 -40...80°C (-40...176°F)

EE23-T4 -40...120°C (-40...248°F)

EE23-T5 -40...180°C (-40...356°F)

Accuracy

Temperature dependence of electronics typ. 0.002°C/°C

Output Scale Span

Humidity RH 0 100 100 100 100 % RH
Temperature T -40 (-40) 60
Dew point temperature Td -40 (-40) 60 (140) 80 (176) 100 (212) 100 (212) °C (°F)
Frost point temperature Tf -40 (-40) 0 (32) 0 (32) 0 (32) 0 (32) °C (°F)

with metal grid filter at 20 °C (68 °F) < 15 sec.

90

∆°C ∆°C

EE23-T1/T2/T4/T5

from up to units

EE23-T1 EE23-T2/T6 EE23-T4 EE23-T5

(140) 80 (176) 120 (248) 180 (356) °C (°F)

EE23-T6

°C°C

Outputs 0 - 1 V -0.5 mA < I

0 - 5 / 0 - 10 V -1 mA < IL < 1 mA

< 0.5 mA

L

0 - 20mA / 4 - 20 mA RL < 470 Ohm

General

Supply voltage
for 0 -1 V / 0 - 5 V outputs 10.5 - 35V DC or 12 - 28V AC
for 0 - 10 V / 0 - 20 mA / 4-20 mA outputs 15.0 - 35V DC or 15 - 28V AC

100...240V AC, 50/60Hz supply module (optional)
Current consumption for voltage output
for DC supply ≤ 25 mA (with alarm module ≤ 35 mA)
for AC supply ≤ 45 mA
Current consumption for current output
for DC supply ≤ 55 mA (with alarm module ≤ 65 mA)
for AC supply ≤ 100 mA
Enclosure / protection class PC or Al Si 9 Cu 3 / IP65; NEMA 4

Cable gland M16x1.5 cable Ø 4.5 - 10 mm (0.18 - 0.39”)

Electrical connection screw terminals max. 1.5 mm² (AWG 16)

Working temperature range of electronics -40...60°C
Working temperature range with display -30...60°C (-22...140°F)

Storage temperature range -40...60°C (-40...140°F)
CE compatibility according EN61326-1 EN61326-2-3 ICES-003 ClassB
Industrial Environment FCC Part15 ClassB

Alarm Module

2)

Output SPDT-Switch max. 250V AC/8A or 28V DC/8A

threshold hysteresis

Setting range 10...95% RH 3...15% RH
Setting accuracy ± 3% RH

1) The accuracy statement includes the uncertainty of the factory calibration with an enhancement factor k=2 (2-times standard deviation). The accuracy was calculated in accordance with

EA-4/02 and with regard to GUM (Guide to the Expression of Uncertainty in Measurement).

2) only for models T1, T2, T4 and T6.

EE23

v5.1 / Modification rights reserved

(with alarm module ≤ 70 mA

eff

(with alarm module ≤ 120 mA

eff

(-40...140°F)

)

eff

)

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